Here's what you need to know for today in the business of podcasting: The IAB has published the new U.S. Podcast Advertising Revenue Study, Tom Webster talks about shfiting podcast advertising to incldue 55+ consumers, Eric Nuzum writes on the importance of making one's audience the foremost concern from the beginning, programmers hope lower ad volumes will earn more viewer time, and what to expect from this year's TV upfronts (according to buyers).

Find links to every article mentioned as well as the full write-up here on Sounds Profitable.